In the tenth year of the apocalypse, mutated plants devour the world. Shen Weiyang, a genius scientist who was expelled for his dangerous theories, was taken into the "Ark", the last fortress of mankind. This place is ruled by the commander Lu Chenzhou who believes in absolute rationality and regards her as an uncontrollable heretic. Initially, he spies on her and she challenges him. Until the giant vines overwhelmed the city, the data was subverted, and the fortress was in civil strife, he protected her, who was seriously injured, under the ruins, and she injected her last hope into his blood. When the truth is revealed, the road to redemption is also the road to sacrifice - they must make soul-tearing choices between the survival of civilization and each other's lives. This is the mutual redemption of two lonely souls on the ruins of doomsday, and it is also the most heroic symbiotic negotiation between human beings and violent nature.
